Esempio n. 1
0
        public RoverResponse Post([FromBody] RoverInstructions value)
        {
            // REGular EXpression for checking instructions are limited to R, M, and L characters.
            Regex instructionsRegex = new Regex(@"^[RML]+$");

            // Check JSON values are within constraints
            if (value.RoverId.Length > 10 || value.MovementInstruction.Length > 100)
            {
                return(new RoverResponse {
                    Message = "Rover ID and/or Movement Instructions are over the allowed limit. Rover ID should be less than 10 characters. Instructions should be less than 100 characters.", CurrentPosition = "()"
                });
            }
            else if (!instructionsRegex.IsMatch(value.MovementInstruction))
            {
                return(new RoverResponse {
                    Message = "Movement Instructions are incorrect. Instructions can only have values of 'R', 'L', and/or 'M'.", CurrentPosition = "()"
                });
            }

            // Retreive rover from Session Storage. If rover does not exist, then create a new one.
            Rover rover = SessionRoverExtension.GetRover <Rover>(HttpContext.Session, value.RoverId) == null ? new Rover(value.RoverId, "N", 0, 0) : SessionRoverExtension.GetRover <Rover>(HttpContext.Session, value.RoverId);

            // Execute all instructions sent for rover.
            rover = RoverOperationsService.ExecuteInstructions(value.MovementInstruction, rover);

            // Save rover to Session Storage, and return result.
            SessionRoverExtension.SetRover(HttpContext.Session, value.RoverId, rover);
            return(new RoverResponse {
                Message = $"Rover {rover.RoverId} has moved. Orientation is: {rover.RoverOrientation}.", CurrentPosition = $"({rover.RoverX},{rover.RoverY})"
            });
        }
Esempio n. 2
0
        public RoverResponse Get(string id)
        {
            // Check JSON values are within constraints
            if (id.Length > 10)
            {
                return(new RoverResponse {
                    Message = "Rover ID is over the allowed limit. Rover ID should be less than 10 characters.", CurrentPosition = "()"
                });
            }

            Rover rover = SessionRoverExtension.GetRover <Rover>(HttpContext.Session, id);

            if (rover == null)
            {
                return new RoverResponse {
                           Message = "Rover does not exist.", CurrentPosition = "()"
                }
            }
            ;

            return(new RoverResponse {
                Message = $"Rover {rover.RoverId}'s orientation is: {rover.RoverOrientation}", CurrentPosition = $"({rover.RoverX},{rover.RoverY})"
            });
        }